Samsung SPM-9150 is a high-performance optical mouse with adjustable DPI settings, customizable buttons, and a comfortable ergonomic design. With its 400/800/1200/1600 DPI switch, you can adjust the mouse sensitivity to suit your gaming or working preferences. The DPI indicator light lets you know which DPI level you're currently using. The side buttons are programmable, allowing you to assign specific functions or macros to them for quick access.